Subject: SCSI DAT tape drives.
To: None <tech-userlevel@NetBSD.ORG>
From: Gerryt <email@example.com>
Date: 03/04/1998 14:33:06
We have occasional backup problems with 4 mm DATS. What happens is we see this
Mar 1 12:56:28 amon /netbsd: st0(ahc1:4:0): Check Condition on opcode 0x1
Mar 1 12:56:28 amon /netbsd: SENSE KEY: Unit Attention
Mar 1 12:56:28 amon /netbsd: ASC/ASCQ: Power On, Reset, or Bus Device
When you see this message only a cold boot clears up the problem as tapes are
no longer accesible.
This is using an Adaptec 2940 UW controller. In the past we have tried
controller NCR to AHA
OS upgrades from 1.2.1 to 1.3
In short everything but the motherboard has been swapped out with different H/W
or S/W. Still we see the above message at random times - approximately every
Are all scsi tape drives this screwy? Do they work better if we say, give it
its OWN controller?